Wrench



PATENTED FEB. 9,1904. i

W. S. OSBORN.

WRENCH.

APPLIOATION mum SEPT. 2a, 1903.

N0 MODEL.

31-100mm; I

O M A" w P m THE nomus PETERS co, mom-Lima. wasnmamu n c UNITED STATESPatented February 9, 1904.

WIIYFIELD S. OSBORN, OF REMINGTON, INDIANA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 751,936, dated February9, 1904.

Application filed September 28, 1903. Serial No. 174,939. (No model.)

To all whom it may concern.-

Be it known that I, VVINEIELD S, OSBORN, acitizen of the United States,residing atRemington, in the county of Jasper and State of Indiana, haveinvented certain new and useful Improvements in Wrenches; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to'whichit appertains to make and use the same.

My invention relates to certain new and useful improvements in wrenchconstruction, and refers more particularly to that class known as apipe-wrench. I

My object is to provide a construction which may be quickly and easilyplaced in cooperation with the pipe or other object to be turned.

A further object is to provide suitable means for releasing said wrenchfrom the pipe or other object.

Other objects and advantages will be hereinafter more clearly set forthand pointed out in the accompanying specification, reference being hadto the accompanying drawings,

which are made a part of this application, and" in which Figure 1 is aside elevation of my invention able handle 2 and at its upper end with ahead or stationary jaw 3. Slidingly mounted upon the shank l is a jaw4;, the slot 5 therein, through which the shank takes, being of greaterlength than the extreme width of said jaw thereby permitting said jaw tohave a rocking motion thereon. One edge of said slot is provided with'adetent or notch-engaging member 6, which is adapted to engage thenotches 7 upon thefront edge of the shank 1.

Located within the slot 5 and secured to one tension upon the inner wallof the slot 5 by means of a pin or stud 10.

The upper face of the sliding jaw 4 is cut away to form a seat for thetoothed plate 11,

said plate having depending sections 12- and 13, which are designed toregister with the slots 14 and 15 provided in the sliding jaw. Theobject in providing the plate 11 is to give a yielding surface to saidjaw, so that it may be easily and quickly disengaged from the objectbeing rotated. It is desired, however, to keep said plate normallyinward and resting against the shoulders 16 of the jaw 4, and to thisend I provide a bolt 17, designed to pass through the orifice in thedepending member 13 and to engage with a threaded orifice in the wall 18between the slots 14 and 15. A tension-spring 19 surrounds said boltbetween the depending member 13 and the wall 18, whereby when said plate11 is pulled outwardly it will be immediately returned to its normallyinward position when released. The stationary jaw 3 is also providedwith cooperating teeth 20 upon its lower face.

In operation the pipe or other object is placed between the jaws 3 and kand the jaw 4 pushed along the shank 1 until the pipe is firmly graspedbetween said jaws, when the spring 8 will cause the detent 6 to engageone of the notches 7 upon said shank and hold said jaw firmly in placeagainst the pipe, when power may be applied to said wrench and the pipeor other object rotated. When, however, it is desired to remove thewrench from the object being rotated or when it is desired to 'move saidwrench so that a new grip may be obtained, the operator moves the'shankof the wrench in the opposite direction, thus causing the plate 11 tomove outwardly, when the free end of the j awe maybe suficiently movedto disengage the detent 6 from the notches 7, when said jaw may be moveddownwardly and the wrench removed from engagement with the pipe, or whenit is desired to get a new hold upon said pipe the yielding of saidplate will permit the wrench to be freely turned in the oppositedirection as far as desired and will again firmly grasp the pipe whenpressure is applied in the opposite direction.

A notch 21 is provided in the wall of the slot 9, against which thespring 8 bears, the object being to limit the downward movement of thehead 1, and to this end it will be seen that as the head 4 movesdownward upon said shank 1 the lower end of the spring 8 will engage thenotch 21 and stop further movement in that directon.

While I have shown the jaw 3 as formed integral with the shank 1, Idesire to state that it may be removably secured thereto in anypreferred manner, and I further desire to state that the gripping-faceof said head may be slanted at divers angles, as required.

It will therefore be seen that I have provided a reliably eflicientdevice and one that may be cheaply constructed and easily operated, andwhile I have shown and described the preferred form of my improvedWrench I wish to comprehend all substantial equivalents and substitutesthat may fairly fall Within the scope and purview of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The herein-described wrench comprising the shank having a stationaryjaw and a handle-section, a plurality of notches upon one edge thereof,a jaw 4; having a slot adapted to receive said shank, a detent upon saidjaw 4: designed to engage said notches, means carried by said jawadapted to keep said detent normally in engagement with said notches, aplate having depending sections 12 and 13 adapted to move longitudinallyin elongated slots 14: and 15 in said jaw 4, a bolt adapted to passthrough an opening in the section 13, said bolt being anchored at eachend in the end walls of the slot 15, and a spring surrounding said boltbetween said section 13 and one wall of the slot 15, whereby said platewill be held yieldingly in place, as set forth.

2. The hereindescribed wrench comprising the shank having a stationaryjaw at one end and a handle-section at the opposite end, a plurality ofnotches upon one edge thereof, a jaw 4 slidingly mounted upon saidshank, a detent carried by said jaw, a spring 8 carried by said jaw andadapted to keep said detent normally in. engagement with said notches,said spring traveling in a groove 9 and bearing against one facethereof, said groove being provided with a notch near its lower end,whereby the downward movement of said jaw 4 will be limited, as and forthe purpose set forth.

3. The herein-described wrench comprising the shank having a stationaryjaw and a handle-section, the jaw I having a slot in one end adapted toreceive said shank, the opposite end of said jaw being tapered andprovided with elongated slots 14: and 15 in one side thereof, a platehaving depending sections 12 and 13 adapted to enter said slots and movelongitudinally therein, a bolt adapted to retain said plate in positionupon said jaw by passing through the opening in the depending section 13and a spring surrounding said bolt between said section 13 and the endwall of the slot 15, whereby said plate will be held normally inward, asset forth.

In testimony whereof I aflix my signature in presence of two witnesses.

WINFIELD S. OSBORN.

Witnesses:

JOHN FISHER, JOHN E. WESTFALL.

